<template>
  <div class="login">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">佑米科技后台管理系统</h3>
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon"/>
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon"/>
        </el-input>
      </el-form-item>
      <el-form-item prop="code">
        <el-input v-model="loginForm.code" type="text"  style="width: 63%" auto-complete="off" placeholder="验证码"
                  @keyup.enter.native="handleLogin">
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon"/>
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode"/>
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin: 0px 0px 25px 0px">记住密码</el-checkbox>
      <el-form-item style="width: 100%">
        <el-button @click.native.prevent="handleLogin" :loading="loading" size="medium" type="primary"
                   style="width: 100%">
          <span v-if="!loading">登录</span>
          <span v-else>登录中...</span>
        </el-button>
      </el-form-item>
    </el-form>
    <div class="el-login-footer">
      <span>Copyright © 2020-2025 g-fast.cn All Rights Reserved.</span>
    </div>
  </div>
</template>

<script>
import {getCodeImg} from '../api/login'
export default {
  name: 'login',
  data () {
    return {
      codeUrl: '',
      loginForm: {
        username: 'demo',
        password: '123456',
        code: '',
        rememberMe: false,
        uuid: ''
      },
      loading: false,
      loginRules: {
        username: [
          {required: true, trigger: 'blur', message: '用户名不能为空'}
        ],
        password: [
          {required: true, trigger: 'blur', message: '密码不能为空'}
        ],
        code: [{required: true, trigger: 'change', message: '验证码不能为空'}]
      },
      redirect: undefined
    }
  },
  created () {
    this.getCode()
  },
  methods: {
    getCode () {
      getCodeImg().then(res => {
        this.codeUrl = res.bas64
        this.loginForm.uuid = res.id
      })
    },
    handleLogin () {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          if (this.loginForm.rememberMe) {
            // 如果点击记住密码，然后把用户名和密码存入localstorage中
            // TODO
          } else {
            // 如果没有点击记住密码，则清除 localstorage 中的用户名和密码
            // TODO
          }
          this.$store.dispatch('login', this.loginForm)
            .then(() => {
              this.$router.push({path: this.redirect || '/'})
            })
            .catch(() => {
              // 登录失败设置loading设置为false
              this.loading = false
              // 刷新获取验证码
              this.getCode()
            })
        }
      })
    }
  }

}
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/image/login-background.jpg");
  background-size: cover;
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 38px;

    input {
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
    width: 120px;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
</style>
